Laser grooving device for metal handrail

The utility model discloses a metal handrail laser grooving device which comprises a machining table, a pair of longitudinal sliding rails are fixedly arranged on the left side and the right side of the end face of the upper end of the machining table, the top ends of the longitudinal sliding rails are in sliding connection with a digital electric control type transverse transmission guide rail, and the digital electric control type transverse transmission guide rail is in sliding connection with a laser generator. A laser cutting head is installed at the bottom end of the laser generator, a through hole is formed in the longitudinal middle position of the longitudinal sliding rail, a pneumatic chuck is installed at the position of the through hole of the longitudinal sliding rail on the left side, and a bearing is installed at the position, corresponding to the through hole of the longitudinal sliding rail on the right side, of the pneumatic chuck. A placer is slidably connected to the upper portion of the l